385-series Ford big-blocks put the manifold bolts at an angle, which makes correct length more important than it looks: too long and the bolt runs out of hole before the manifold is seated. This set is the 2.25 in. grade 5 hardware for 429 and 460 manifolds, so the intake pulls down evenly and stays torqued through heat cycles.

Edelbrock 8569 Manifold Bolt Set Specifications:

• Grade 5 steel bolts with a silver finish.
• 3/8 in. thread diameter, coarse thread pitch.
• 2.25 in. length.
• For Ford 429 and 460 cubic inch intake manifolds.
• Sold as a set. Torque in sequence from the center outward when installing.